The area in which a population lives

Where in the body can you find chemoreceptors? a. on the skin and ears, to detect pressure, touch, motion, and sound b. on the retina, to detect a single photon of light c. on the skin, to detect temperature or specific chemicals d. on the tongue and in the nose, to detect taste or odor

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?